we've even heard it compare to the legendary mary tyler moore show. and there is a long line of celebrities who guest starred on "30 rock" among them, oprah, al gore, and matt damon and then there is this little clip. >> you listen-clip. >> you listen to me, blitzer, either cnn gets back on the avery jessop story or i'll tell everyone your real name, steel hammerhands. hello? steel? mr. hammerhands? >> oh, i love that moment. even our own wolf blitzer got a little shout-out in one episode. >> how'd he know that? >> yeah, how'd he know that, right, wolf? we wish them well. and people will say that comedy is really hard to do. they have to do all that clever writing, so our hats off to them, to everybody behind that production, for seven seasons. >> you can call me steel. >> i will call you steel. you've got steel, you got blitz, all of these great nicknames. >> and right after the first gulf war, on "saturday night live," they accused me of make up my name for the war. so they said, well -- they said, what's your real name? howitzer explosion guys? >>